def test_stream(self):
msg = b'Hello, world!'
key = nacl.randombytes(nacl.stream_KEYBYTES)
nonce = nacl.randombytes(nacl.stream_NONCEBYTES)
enc = nacl.stream_xor(msg, nonce, key)
self.assertIsInstance(enc, bytes)
self.assertEqual(len(msg), len(enc))
msg2 = nacl.stream_xor(enc, nonce, key)
self.assertEqual(msg, msg2)
def test_scalarmult(self):
x = nacl.randombytes(nacl.scalarmult_SCALARBYTES)
y = nacl.randombytes(nacl.scalarmult_SCALARBYTES)
gX = nacl.scalarmult_base(x)
self.assertEqual(len(gX), nacl.scalarmult_BYTES)
gY = nacl.scalarmult_base(y)
self.assertEqual(len(gY), nacl.scalarmult_BYTES)
gXY = nacl.scalarmult(y, gX)
self.assertEqual(len(gXY), nacl.scalarmult_BYTES)
gYX = nacl.scalarmult(x, gY)
self.assertEqual(len(gYX), nacl.scalarmult_BYTES)
self.assertEqual(gXY, gYX)
def test_onetimeauth(self):
msg = b'Hello, world!'
key = nacl.randombytes(nacl.lookup('onetimeauth_KEYBYTES'))
auth = nacl.onetimeauth(msg, key)
self.assertIsInstance(auth, bytes)
self.assertTrue(nacl.onetimeauth_verify(auth, msg, key))
self.assertEqual(len(auth), nacl.lookup('onetimeauth_BYTES'))
msg = bytearray(msg)
key = bytearray(key)
auth = bytearray(auth)
msg[0] ^= 0xff; self.assertFalse(nacl.onetimeauth_verify(auth, msg, key))
msg[0] ^= 0xff; self.assertTrue(nacl.onetimeauth_verify(auth, msg, key))
key[0] ^= 0xff; self.assertFalse(nacl.onetimeauth_verify(auth, msg, key))
key[0] ^= 0xff; self.assertTrue(nacl.onetimeauth_verify(auth, msg, key))
auth[0] ^= 0xff; self.assertFalse(nacl.onetimeauth_verify(auth, msg, key))
auth[0] ^= 0xff; self.assertTrue(nacl.onetimeauth_verify(auth, msg, key))
